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CVE-2026-64512 ACPI: CPPC: Suppress UBSAN warning caused by field misuse

🗓️ 25 Jul 2026 08:52:04Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 39 Views

Linux kernel fixes UBSAN by validating region type and access_width for ACPI_ADR_SPACE_PLATFORM_COMM in CPPC.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/acpi/cppc_acpi.c"
    ],
    "versions": [
      {
        "version": "4949affd5288b867cdf115f5b08d6166b2027f87",
        "lessThan": "b54c4632946ae42f2b39ed38abd909bbf78cbcc2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "01fc53be672acae37e611c80cc0b4f3939584de3",
        "lessThan": "e904596ba6dd108534ffa15e3e46b2fe245145e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1b890ae474d19800a6be1696df7fb4d9a41676e4",
        "lessThan": "2fb80e962029000959f651665baa4838cc92eb99",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "37f28bf8f14672dfa395994e41fd778a63f0bf5c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "f29dc6132d4968e39d8fa575d1a12e2c718ce57b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "dc066bd13c860bb27d6ace511210e18b8064c1d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f4a4d63a193be6fd530d180bb13c3592052904c",
        "lessThan": "1b1acf2dada0cc3931bb2cb9ff8832edfbee46a1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6cb6b12b78dcd8867a3fdbb1b6d0ed1df2b208d1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.15.154",
        "lessThan": "5.15.155",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.90",
        "lessThan": "6.1.178",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.30",
        "lessThan": "6.6.145",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.8.9",
        "lessThan": "6.9",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/acpi/cppc_acpi.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.155",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Aug 2026 04:57Current
EPSS0.00173
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